#include<iostream>
#include<string>
using namespace std;
#define QiKun
int main()
{
	#ifdef LINUX
	string msg="Your linux version is too old";
	#else
	string msg="your windows vsersion ia too old";
	#endif
	cout<<msg<<endl;
	#ifdef DEBUG
	cout<<"this is debug version"<<endl;
	#endif
	return 0;
}
